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Python 2.7 alpha 4

On behalf of the Python development team, I’m overjoyed to announce the fourth
alpha release of Python 2.7.

Python 2.7 is scheduled (by Guido and Python-dev) to be the last major version
in the 2.x series. Though more major releases have not been absolutely ruled
out, it’s likely that the 2.7 release will an extended period of maintenance for
the 2.x series.

2.7 includes many features that were first released in Python 3.1. The faster
io module, the new nested with statement syntax, improved float repr, set
literals, dictionary views, and the memoryview object have been backported from
3.1. Other features include an ordered dictionary implementation, unittests
improvements, a new sysconfig module, and support for ttk Tile in Tkinter. For
a more extensive list of changes in 2.7, seehttp://doc.python.org/dev/whatsnew/2.7.html or Misc/NEWS in the Python
distribution.